TheAD73311andAD73311Larecompletefront-endprocessorsforgeneral-purposeapplicationsincludingspeechandtelephony.Theyfeaturea16-bitA/Dconversionchannelanda16-bitD/Aconversionchannel.Eachchannelprovides70dBsignal-to-noiseratiooverthevoicebandsignalbandwidth.TheAD73311Lisafollow-ontotheAD73311withimprovedon-chipfiltering,moresample-rateoptionsandlowercost.TheLversionoperatesfrom3.0Vonly,whereastheAD73311operatesfromeither3Vor5Vpowersupplies.

ThegainsoftheA/DandD/Aconversionchannelsareprogrammableover38dBand21dBrespectively.Anon-chipreferencevoltageisincludedtoallowsingle-supplyoperations.Aserialport(SPORT)allowseasyinterfacingforsingleorcascadeddevicestoindustrystandardDSPengines.

TheAD73311andAD73311Laresuitableforavarietyofapplicationsinthespeechandtelephonyareasincludinglow-bitrate,highqualitycompression,speechenhancement,recognitionandsynthesis.Thelowgroupdelaycharacteristicofthepartmakesitsuitableforsingleormulti-channelactive-controlapplications.